31957804027 has 2 divisors, whose sum is σ = 31957804028. Its totient is φ = 31957804026.

The previous prime is 31957804007. The next prime is 31957804031. The reversal of 31957804027 is 72040875913.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31957804027 is a prime.

It is not a weakly prime, because it can be changed into another prime (31957804007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15978902013 + 15978902014.

It is an arithmetic number, because the mean of its divisors is an integer number (15978902014).

Almost surely, 2^31957804027 is an apocalyptic number.

31957804027 is a deficient number, since it is larger than the sum of its proper divisors (1).

31957804027 is an equidigital number, since it uses as much as digits as its factorization.

31957804027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 31957804027 in words is "thirty-one billion, nine hundred fifty-seven million, eight hundred four thousand, twenty-seven".